1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 1997 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1988 AT&T */
28 /* All Rights Reserved */
29
30 /*
31 * University Copyright- Copyright (c) 1982, 1986, 1988
32 * The Regents of the University of California
33 * All Rights Reserved
34 *
35 * University Acknowledgment- Portions of this document are derived from
36 * software developed by the University of California, Berkeley, and its
37 * contributors.
38 */
39
40 /*LINTLIBRARY*/
41
42 #include <sys/types.h>
43 #include "curses_inc.h"
44
45 /* This routine erases everything on the window. */
46 int
wclrtobot(WINDOW * win)47 wclrtobot(WINDOW *win)
48 {
49 bool savimmed, savsync;
50 int cury = win->_cury;
51 short curx = win->_curx;
52
53 if (win != curscr) {
54 savimmed = win->_immed;
55 savsync = win->_sync;
56 win->_immed = win->_sync = FALSE;
57 }
58
59 /* set region to be clear */
60 if (cury >= win->_tmarg && cury <= win->_bmarg)
61 win->_cury = win->_bmarg;
62 else
63 win->_cury = win->_maxy - 1;
64
65 win->_curx = 0;
66 for (; win->_cury > cury; win->_cury--)
67 (void) wclrtoeol(win);
68 win->_curx = curx;
69 (void) wclrtoeol(win);
70
71 if (win == curscr)
72 return (OK);
73
74 /* not curscr */
75 win->_sync = savsync;
76
77 if (win->_sync)
78 wsyncup(win);
79
80 win->_flags |= _WINCHANGED;
81 return ((win->_immed = savimmed) ? wrefresh(win) : OK);
82 }
83